ALLSOME M42 HSS Twist Drill Bit Set for Metal 8% High Cobalt Copper Iron Aluminum Wood Stainless Steel Drilling Core drill Bits

Specification: Material: M42 High Speed Steel Cobalt: 8% High Cobalt Blade: Three-edge cutter head design(Less than 3mm is not triple edge) Application: Copper, iron, aluminum, wood, stainless steel, metal drilling Fit for Equipment: Use on electric drills, bench drills, etc

Package Included: 13pcs Set: 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5mm 19pcs Set: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9.0, 9.5, 10mm 25pcs Set: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9.0, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13mm

Features: 1. Using M42 high speed steel, 8% high cobalt, more durable and shaper, easy to drill solid material, such as 304 stainless steel. 2. 3 edge cutter head and 135 degree split point design, make drilling easier, easy to chip, no slipping. 3. High heat treated hardness 68-70 HRC. 4. Can be used radial drill, bench drill or hand drill chuck for drilling operations.